PROBLEM TO BE SOLVED: To provide a clasp of a partial floor denture.SOLUTION: A modulus of elasticity of titanium molybdenum tin wire being a new material in a clasp arm part for a synthetic resin floor section denture is extremely low, and the wire has characteristics showing high strength. Accordingly, the isthmus 3 of a crown dentition gap between the teeth adjacent teeth can be rocked, and therefore an oblong spherical part 19 is mounted in the tip of this wire and is sealed with a gap 20 between the adjacent teeth roots, and thereby the partial denture can be maintained stably. Also, the problem of a conventional clasp in which a conventional material damages the fang supporting tissue can be solved.SELECTED DRAWING: Figure 13COPYRIGHT: (C)2017,JPO&INPIT【課題】部分床入れ歯のクラスプを提供する。【解決手段】合成樹脂床部分入れ歯用クラスプ鉤腕部新素材であるチタンモリブデンスズワイヤーの弾性係数が極めて低く高強度を示す特性から、歯牙隣在歯同士の歯冠歯列間隙同士の峡部3を揺動させることが出来るため、このワイヤーの先端部に長楕円球状部19を取付け隣接歯牙歯根同士の間隙20で封止させることによって部分床義歯の安定維持を計ることが出来る。また、従来材による該牙支持組織を破壊していた従来型クラスプの課題を解決させることが出来る。【選択図】図13
